@article{102513,
      url = {http://digitallibrary.un.org/record/102513},
      title = {Development of cyclical/line production systems in  opencast coal-mining /},
      publisher = {UN,},
      recid = {102513},
      pages = {2 p.},
      address = {Geneva :. 1984-05-07},
      year = {1984},
      month = {May},
}